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Finding the Fourth Proportional to 74,425.40, 111,636.30 and 44,820.80

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Solution

The fourth proportional to 74,425.40, 111,636.30 and 44,820.80 is: 67,230.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,425.40 : 111,636.30 = 44,820.80 : x
  2. Step 2: Convert to fraction form
    74,425.40/111,636.30 = 44,820.80/x
  3. Step 3: Cross multiply
    74,425.40x = 111,636.30 × 44,820.80
  4. Step 4: Simplify right side
    74,425.40x = 5,003,628,275.04
  5. Step 5: Solve for x
    x = 5,003,628,275.04/74,425.40
  6. Step 6: Final answer
    x = 67,230.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.